Facial washing keep skin beauty

My mother is 46 years old, she never facial computer and do not use any skin care products,
Even do not use facial cleaner. But she is beautiful, skin much better than young ladies.
After skin analysis I found there is a key point, her cells is very clean because eat health food,
without radio by electronic products such as coputer and phone.
Besides, most skin care products with chemical addition will hurt our body.
So some times our skin need to eat, but not ceamns only.